Heset f



(No Model.)

Hf. P. NBWBURY. SAFE LOCK.

No. 283,644. Patented Aug. 21, 1883.

N. PETERS. Pnmvuuwgnphur. Wauengw. 0.1;

Nirnn STATES .ATENE trice,

HENRY Nnwnunr, or nnooirnviv, naw vomi.

SAFE- SPECIFICATION forming part of Letters LOCK.

Patent No. 283,644, datednugust 21, ieee.

Application tiled April 24, 1883. (No model.)

provide a means whereby the door of a safe,

l ity with the present invention.

vault, or similar structure may remain locked` even though it be subjected to a sudden and heavy shock, such as would be calculated to displace a lock or break 'its works if constructed and mounted in the usual manner.

The invention is fully illustrated in the accompanying drawings, inwhichthere is shown a mechanism by means of which the door-spindie may be disconnected from the doonbolts after the latter have been thrown forward into the jamb of the door, and by means of ,which at the same time the door-bolts maybe locked positively-but it is not necessary to the invention that the positivelock be made when the mechanism is constructed for disconnecting the spindle from the door-bolts, nor that the latter construction be employed when the positive lock is used. Vhether the one or the other or both of these constructions be used, the invention consists in so constructing and arranging the devices which actuate the locking or disconnecting piece 'that the latter will lbe under the active control of the former only when the latter is brought into proper position for unlocking, and so that if at any other time the devices which control this piece are displaced, as by the force of a sudden and heavy shock, (such as might result from the explosion of a charge of dynamite against the exterior ofthe safe,)this locking or disconnecting piece will not be disturbed, and consequently the door will remain locked. 5

In the accompanying drawings, Figure lis an elevation of the inner face oi' a safe or vault door, having a lock mechanism and disconnecting devices arranged upon it in conform- Fig, 2 is a horizontal section taken on the line wa; of Fig.

latch or connecting-piece, and Fig. 4 is an under view of the same.

Referring to the drawings in detail, A is a lock mechanism, mounted on the door B.

C C are ordinary door-bolts,working in boltbars D, and connected by neans oi' the usual carrying or tie bar, E.

F is the door-spindle, which may be of any ordinary construction and which carries upon its inner end a notched disk, G, and H is the face of the door.

I I is a compound latch or bar, pivoted to the tie-bar E. The front member of this latch is provided with a hook capable of engaging with the stud II, while the rear member ofthe latch is provided with a pin, J, adapted to engage with the notch in the revolving disk G.

face of the safe-door, one end of whichlever has a pin which works in a slot in the moving bar L of the lock, and the other end of which takes in under the rear member, I', of the compound pivoted latch. tached the part l of the compound latchand to rise when the former is lifted, and in like manner the small pin N, projecting from the part I and entering a notch in the upper edge of the part Licauses the latter to partake of the downward movement of the former.

follows: In order to lock thesafe or vault the sliding bar L of the lock must be in the .retracted position. This will hold the connecting-latch I I raised and in engagement with under the control of the spindle F. The parts being in this position, the door of the safe may be closed, and by turning the spindle the doorbolts are thrown into the jamb of the dooigafter which, if the piece L of the lock be moved into the locking or advanced position, yas shown in the drawings, the connecting-piece I I', being no longer held up bythe elbow-lever, will fall out of engagement with the notched disk and will become engaged with the stud H. So long as the piece L remains in the advanced 1 position the door of the safe will remain locked l. Fig. 3` is a rear view of the compound ja fixed stud or stop projecting inwardly from` K is an elbow-lever pivoted to the inner.

A stiff spring, M, at-

The operation of the parts here shown is as the notched disk G, which puts the door-bolts extending under the part I, 'causes the latter roo will lift the connecting-piece I I away from the stud H and reconnect it with the spindle `through the medium of the pin J and notched disk G. Thereupon the turning of the spindle will retract the door-bolts, and thus unlock the safe. ,If, the parts being in the position shown in Fig. l, the bolt mechanism A should be displaced, it is manifest that it would not disturb the connecting-piece I, and thus the,

door would remain locked.

The objectinmaking thelatch I I in two parts is to compensate for 'possible friction arising from the jamming of the hook against the stud H. If, when the latch is constructed as shown in the drawings, such jamming takes place by reason of a rearward movement of the doorbolts occasioned by a `jar or shock, it will affect directly only the part I which carries the hook. Notwithstandingithe friction occasioned thereby the lock mechanism Awill be able to raise the part I so as to engage it with the disk, the spring M yielding for this purpose. Such engagement being effected, a slight forward turn ofthe spindle will free the face of the hook on part I from frictional contact with the face of the stud, and thereupon the part I will at once be lifted clear" of the stud by the force of the spring M.

In order to prevent the latch I I from being re-engaged with the spindle by turning the safe' over (which would be possible with a small safe) a. pendulum detent, O, suitably weighted'at its lower end, P, may be pivoted just below thelatch. This detent is constructed with an open circular slot adapted to engage with a Vpin on the latch I. Any inclination of the safe, when the latch is in engagement with the stud H, will cause the pendulum-detent to engage with the pin on the latch, and this will lsecure the latch from falling away from the stud even if the safe be turned bottom side up.

It is manifest that this invention is independent of the special character of the lock employed. An ordinary combination-lock -may be used for. operating the latch or connecting-piece, or the invention may be l practiced in connection with any of the time-locks adaptedfor useupon safes and vaults; and instead of connecting the elbow-lever K with what is ordinarily regarded as the bolt `of the lock, it is plain that it may be connected with any of the moving parts of the lock mechanism, provided only that the part with which it is connected has sufficient strength and range of motion to give the latch the required amount of movement. In fact, in the construction shown in the drawings the piece L, whilehaving the form of an ordinary lockbolt, does not perform the functions of such bolt, being used simply to operate the interby the simple inertia of the parts.

constructed on the moving parts of the boltwork, and so related to the elbow-lever K or other operating -mechanism that the movement to and fro of part L of the lockY will cause such vertically-moving connecting-piece to engage with or disconnect from the spindle. So, also, instead of pivoting the connecting-piece to the carrying-bar, it might be pivoted to the door, and made to work against a stud or other abutment attached to or forming a part of the moving parts of the bolt-a work. Y y

As above indicated, it is not absolutely necessary to this invention that the stud H or any equivalent abutment be used. If this stud be omittedthe door will, under ordinary circumstances, remain locked when the spindle is disconnected from the door-bolts or some similar abutmentfhowever, is desirable on small safes, to prevent them from being unlocked' by turning them over. To this end some detentsuch, for instance, as the pendulum attachment shown in Fig. 1- should be used to prevent the latch or equivalent connecting-piece from disengaging from the abutment. So, also, as bove indicated, if the stud H or any equivalent abutment be used, against which the connecting-piece I may act to constitute apositive lock, it will The stud Y IOO not be absolutely necessary to the invention that the door-bolts be disconnected from the door-spindle. In either case, under an arrangement like that shown in the drawings,

the lock mechanism which is relied upon to v actuate the connecting-piece I might be unseated by the force of a sudden and heavy shock without unlocking the door, such result being due to the fact, rst, that during the time when the door is locked the position of the connecting-piece is not dependent upon the lock mechanism A, and upon the further fact that this connecting-piece and the device or devices by which it is operated are so far separated that the latter may be wholly displaced without disturbing the former.

What is claimed as new is- Y In combination with the door-bolts of a safe, vault, or similar structure, a locking or disconnecting deviceby means of which, according to the particular construction adopted, the door bolts may be' locked positively against retraction, or the operative connection between the door-spindle and the doorbolts be interrupted, and means for operating such locking or disconnecting device by rais; ing the same out of the locking position or into engagement with the spindle, as the case 5 may loe,V when it is desired to unlock the door, l Witnesses:

the operating device or devices being arranged E. F. GAYLORD,

piece, substantially as set forth, whereby the former maybe displaced Without disturbing the position of the latter.

HENRY F. NEWBURY.

relatively to the looking or disconnecting l SAML. A. DUNCAN. 

